public static Mei createDefaultMeiTree(int stavesCount, int measureCount) {
Mei mei = new Mei();
MeiHead meiHead = new MeiHead();
FileDesc fileDesc = new FileDesc();
TitleStmt titleStmt = new TitleStmt();
Title title = new Title();
title.getContent().add("New MEI-2013 document");
titleStmt.getTitles().add(title);
fileDesc.setTitleStmt(titleStmt);
PubStmt pubStmt = new PubStmt();
fileDesc.setPubStmt(pubStmt);
SourceDesc sourceDesc = new SourceDesc();